Description Application 2-Methyl-4-isothiazolin-3-one may be used as an antimicrobial preservative for the analysis of Ochratoxin A in spices using clean-up tandem immunoassay columns followed by confirmation by high performance liquid chromatography technique and in non-formalin products for wallpaper adhesives using gas chromatography technique. Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.